ci / lint-test (push) Successful in 43s
App-wide retheme done at the token layer: Tailwind's zinc scale is remapped to warm ink/paper neutrals and indigo to copper in globals.css, so every page inherits the palette. Fraunces (serif display) added for page titles and hero figures; all figures now render in mono with tabular numerals. Analytics page redesigned around a month spine — twelve clickable columns scaled to each month's spend that act as hero, context, and period navigation. Adds a 'What changed' top-movers panel vs the previous month, replaces the 8-line category trend chart with per-category sparkline small multiples, heat-tints the six-month ledger table, and restyles the Pareto, pace chart, and cashflow strip. Kept: Pareto, cumulative-vs-typical pace, drill-downs, regular/occasional split. Insights and Merchants restyled to the same kit; chart tokens centralised in category-colors.ts (CHART). Cleared the pre-existing lint errors in insights (typed tooltip, removed any-casts).